nation of algeria and abc's chief global affairs correspondent martha raddatz spent the day with the defense secretary, leon panetta, in italy, as he was tracking every new development. martha? >> reporter: diane, this situation is very fluid, but reports we are getting tonight about the raid are very ominous. a u.s. official telling me tonight there were ten americans at the field, five are safe. but the fate of the other five, we do not know. what is clear tonight is that this is far from over. with algerian forces now surrounding the complex, the british prime minister is warning that this raid could end in even more bloodshed. >> it is a very dangerous, very uncertain, a very fluid situation and i think we have to prepare ourselves for the possibility of bad news ahead. >> reporter: the worst, coming after the algerian military moved in with helicopters, reportedly fearing the hostage takers were going to escape. the terror group was holed up in the natural gas plant along with their hostages, the americans and other workers from britain, france, japan and norway. some reportedly forced